Automobile sealing strip with double-layer buffer structure

Abstract

The utility model relates to the technical field of automobile sealing strip provides a kind of automobile sealing strip with double-layer buffer structure, including buffer structure: the buffer structure is coaxially installed in the inside of sealing strip main body structure;Sealing strip main body structure: the sealing strip main body structure includes sealing matrix, mounting groove and connecting portion;The mounting groove is opened in the side of sealing matrix;Buffer structure: the buffer structure includes first buffer layer, second buffer layer, buffer spring.The utility model sets up buffer structure, through the double-layer setting of first buffer layer and second buffer layer, in combination with the elastic effect of buffer spring and elastic protrusion, double buffering can be realized, buffer cavity and buffer foam can further absorb impact force, reinforcing rib improves the strength of buffer layer, and wear-resistant layer enhances the wear resistance of sealing strip, can effectively improve the buffering performance of sealing strip, reduce the damage of impact force to sealing strip, prolong its service life.

Description

Technical Field

[0001] This utility model relates to the field of automotive sealing strip technology, and in particular to an automotive sealing strip with a double-layer buffer structure. Background Technology

[0002] Automotive sealing strips are one of the important components of a car body. They are used to fill various gaps between the body parts and can play a role in shock absorption, waterproofing, dustproofing, sound insulation, and decoration. They are widely used in car doors, windows, trunks and other parts of the car. When a car equipped with weatherstripping encounters bumps, collisions, or when the doors are closed while driving, the weatherstripping needs to withstand a certain amount of impact. However, traditional weatherstripping is mostly a single-layer structure with limited cushioning effect. After long-term use, it is prone to deformation and aging due to repeated stress, which in turn affects its sealing and cushioning performance, reducing the comfort and safety of the car. Utility Model Content

[0003] The purpose of this invention is to provide an automotive sealing strip with a double-layer buffer structure to solve the defects of existing automotive sealing strips, such as poor buffer performance and easy damage after long-term use.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an automotive sealing strip with a double-layer buffer structure, including a sealing strip main body structure; Buffer structure: The buffer structure is coaxially installed inside the main structure of the sealing strip; The main structure of the sealing strip includes a sealing base, a mounting groove, and a connecting part; The mounting groove is formed on one side of the sealing substrate, and the connecting part is fixedly connected to the other side of the sealing substrate; Buffer structure: The buffer structure includes a first buffer layer, a second buffer layer, a buffer spring, an elastic protrusion, and a buffer cavity; The first buffer layer is fixedly connected to one side of the interior of the sealing substrate, the second buffer layer is fixedly connected to the other side of the interior of the sealing substrate, the buffer spring is fixedly connected between the first buffer layer and the second buffer layer, the elastic protrusions are respectively disposed on the opposite surfaces of the first buffer layer and the second buffer layer, and the buffer cavity is opened between the first buffer layer and the second buffer layer. Preferably, the buffer structure further includes reinforcing ribs, buffer foam, and a wear-resistant layer; The reinforcing ribs are fixedly connected to the interior of the first and second buffer layers, the buffer foam is filled inside the buffer cavity, and the wear-resistant layer is fixedly connected to the outer surface of the sealing substrate. Preferably, the number of buffer springs is several groups, and the several groups of buffer springs are evenly distributed between the first buffer layer and the second buffer layer. Preferably, the elastic protrusion is a hemispherical structure, and the elastic protrusion, the first buffer layer, and the second buffer layer are integrally formed. Preferably, the main structure of the sealing strip further includes a snap-fit ​​strip and a sealing lip; The snap-fit ​​strip is fixedly connected to the inner wall of the mounting groove, and the sealing lip is fixedly connected to the edge of the sealing substrate. Preferably, it also includes an auxiliary sealing structure; The auxiliary sealing structure includes a waterproof membrane, a dustproof mesh, and an adsorption layer; The waterproof membrane is fixedly connected to the inner side of the sealing substrate, the dustproof net is set on one side of the waterproof membrane, and the adsorption layer is fixedly connected to the other side of the dustproof net. Preferably, the auxiliary sealing structure further includes a flow guide groove; The flow channel is formed at the surface edge of the sealing substrate. The advantages of the automotive sealing strip with a double-layer buffer structure provided by this utility model are as follows: This invention, through the setting of a buffer structure, with the double layer of a first buffer layer and a second buffer layer, combined with the elastic action of the buffer spring and elastic protrusion, can achieve double buffering. The buffer cavity and buffer foam can further absorb the impact force, the reinforcing ribs improve the strength of the buffer layer, and the wear-resistant layer enhances the wear resistance of the sealing strip, which can effectively improve the buffering performance of the sealing strip, reduce the damage of the sealing strip to the impact force, and extend its service life.

[0005] Based on the aforementioned beneficial effects, by incorporating an auxiliary sealing structure and through the auxiliary cooperation between the waterproof membrane and the dustproof mesh, moisture can be prevented from seeping into the car's interior while dust is prevented from entering the vehicle. This enhances the waterproof and dustproof performance of the sealing strip and improves the comfort of the car's interior environment. Attached Figure Description

[0006] Figure 1 This is an axonometric view of the present invention; Figure 2 This is another isometric view of the present invention; Figure 3 This is a three-dimensional sectional view of the present invention; Figure 4 This is a three-dimensional schematic diagram of the first buffer layer of this utility model; Figure 5 This is a schematic diagram of the auxiliary sealing structure of this utility model.

[0007] Explanation of the reference numerals in the figure: 11. Sealing substrate; 12. Mounting groove; 13. Connecting part; 14. Snap-fit ​​strip; 15. Sealing lip; 21. First buffer layer; 22. Second buffer layer; 23. Buffer spring; 24. Elastic protrusion; 25. Buffer cavity; 26. Reinforcing rib; 27. Buffer foam; 28. Wear-resistant layer; 31. Waterproof membrane; 32. Dustproof net; 33. Adsorption layer; 34. Diversion channel. Detailed Implementation

[0008] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0009] Please see Figures 1-5 This utility model provides an automotive sealing strip with a double-layer buffer structure, including the main structure of the sealing strip: Buffer structure: The buffer structure is coaxially installed inside the main structure of the sealing strip; The main structure of the sealing strip includes a sealing base 11, a mounting groove 12, and a connecting part 13; The mounting groove 12 is formed on one side of the sealing base 11, and the connecting part 13 is fixedly connected to the other side of the sealing base 11; The main structure of the sealing strip also includes a snap-fit ​​strip 14 and a sealing lip 15; The snap-fit ​​strip 14 is fixedly connected to the inner wall of the mounting groove 12, and the sealing lip 15 is fixedly connected to the edge of the sealing base 11. The sealing base 11 is the main frame of the sealing strip, the mounting groove 12 is used to install the sealing strip in the corresponding part of the car, the snap-fit ​​strip 14 can enhance the stability of the installation, the connecting part 13 is used to connect with other parts of the car, and the sealing lip 15 further improves the sealing effect. Buffer structure: The buffer structure includes a first buffer layer 21, a second buffer layer 22, a buffer spring 23, an elastic protrusion 24, and a buffer cavity 25; The first buffer layer 21 is fixedly connected to one side of the interior of the sealing base 11, the second buffer layer 22 is fixedly connected to the other side of the interior of the sealing base 11, the buffer spring 23 is fixedly connected between the first buffer layer 21 and the second buffer layer 22, the elastic protrusions 24 are respectively disposed on the opposite surfaces of the first buffer layer 21 and the second buffer layer 22, and the buffer cavity 25 is opened between the first buffer layer 21 and the second buffer layer 22. The cushioning structure also includes reinforcing ribs 26, cushioning foam 27, and a wear-resistant layer 28; The reinforcing rib 26 is fixedly connected to the inside of the first buffer layer 21 and the second buffer layer 22, the buffer foam 27 is filled inside the buffer cavity 25, and the wear-resistant layer 28 is fixedly connected to the outer surface of the sealing substrate 11. The number of buffer springs 23 is several groups, and the several groups of buffer springs 23 are evenly distributed between the first buffer layer 21 and the second buffer layer 22. The elastic protrusion 24 is a hemispherical structure, and the elastic protrusion 24 is integrally formed with the first buffer layer 21 and the second buffer layer 22. The double-layer configuration of the first buffer layer 21 and the second buffer layer 22, combined with the elastic action of the buffer spring 23 and the elastic protrusion 24, can achieve double buffering. The buffer cavity 25 and the buffer foam 27 can further absorb the impact force, the reinforcing rib 26 improves the strength of the buffer layer, and the wear-resistant layer 28 enhances the wear resistance of the sealing strip. Working principle: When the car's weatherstripping is subjected to external impact; First, the impact force is transmitted to the sealing substrate 11, and then acts on the first buffer layer 21 and the second buffer layer 22. The buffer spring 23 between the first buffer layer 21 and the second buffer layer 22 is compressed, producing elastic deformation, absorbing part of the impact force. At the same time, the elastic protrusions 24 squeeze each other and also deform, further buffering the impact force. Next, the cushioning foam 27 inside the buffer cavity 25 is compressed, and its own elasticity is used to further absorb and disperse the impact force. The reinforcing rib 26 ensures that the first buffer layer 21 and the second buffer layer 22 will not easily deform when subjected to force. This step effectively improves the cushioning performance of the sealing strip, reduces the damage to the sealing strip from impact, and extends its service life. Please see Figure 3-5 As shown, this embodiment, based on the above embodiment, also includes an auxiliary sealing structure: The auxiliary sealing structure includes a waterproof membrane 31, a dustproof mesh 32, and an absorbent layer 33; The waterproof membrane 31 is fixedly connected to the inner side of the sealing substrate 11, the dustproof net 32 ​​is disposed on one side of the waterproof membrane 31, and the adsorption layer 33 is fixedly connected to the other side of the dustproof net 32. The auxiliary sealing structure also includes a flow guide groove 34; The flow channel 34 is formed at the edge of the surface of the sealing substrate 11; The waterproof membrane 31 prevents water from entering the car interior, the dustproof mesh 32 filters dust, the adsorption layer 33 adsorbs fine particles, and the drainage channel 34 facilitates the drainage of water. The waterproof membrane 31 and the dustproof net 32 ​​work together to prevent moisture from seeping into the car interior while also preventing dust from entering the car. Working principle: During the car's movement; First, the waterproof membrane 31 acts as a barrier against rainwater and other moisture, preventing water from seeping into the car's interior. Next, the dust filter 32 filters the dust in the air to prevent dust from entering the vehicle, and the adsorption layer 33 further adsorbs the fine particles that pass through the dust filter 32. When a small amount of moisture comes into contact with the surface of the sealing substrate 11, it will be smoothly discharged through the guide groove 34 and will not accumulate at the sealing strip. This step enhances the waterproof and dustproof performance of the sealing strip, improving the comfort of the car's interior environment.

[0010] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A car sealing strip with a double-layer buffer structure, comprising a sealing strip main body structure, characterized in that: Buffer structure: The buffer structure is coaxially installed inside the main structure of the sealing strip; The main structure of the sealing strip includes a sealing base (11), a mounting groove (12), and a connecting part (13). The mounting groove (12) is opened on one side of the sealing base (11), and the connecting part (13) is fixedly connected to the other side of the sealing base (11); Buffer structure: The buffer structure includes a first buffer layer (21), a second buffer layer (22), a buffer spring (23), an elastic protrusion (24), and a buffer cavity (25); The first buffer layer (21) is fixedly connected to one side of the inside of the sealing substrate (11), the second buffer layer (22) is fixedly connected to the other side of the inside of the sealing substrate (11), the buffer spring (23) is fixedly connected between the first buffer layer (21) and the second buffer layer (22), the elastic protrusions (24) are respectively disposed on the opposite surfaces of the first buffer layer (21) and the second buffer layer (22), and the buffer cavity (25) is opened between the first buffer layer (21) and the second buffer layer (22).

2. The automotive sealing strip with a double-layer buffer structure according to claim 1, characterized in that, The buffer structure also includes reinforcing ribs (26), buffer foam (27), and wear-resistant layer (28); The reinforcing rib (26) is fixedly connected to the interior of the first buffer layer (21) and the second buffer layer (22), the buffer foam (27) is filled inside the buffer cavity (25), and the wear-resistant layer (28) is fixedly connected to the outer surface of the sealing substrate (11).

3. The automotive sealing strip with a double-layer buffer structure according to claim 2, characterized in that, The number of buffer springs (23) is several groups, and the several groups of buffer springs (23) are evenly distributed between the first buffer layer (21) and the second buffer layer (22).

4. The automotive sealing strip with a double-layer buffer structure according to claim 2, characterized in that, The elastic protrusion (24) is a hemispherical structure, and the elastic protrusion (24) is integrally formed with the first buffer layer (21) and the second buffer layer (22).

5. A car sealing strip with a double-layer buffer structure according to claim 1, characterized in that, The main structure of the sealing strip also includes a snap-fit ​​strip (14) and a sealing lip (15). The snap-fit ​​strip (14) is fixedly connected to the inner wall of the mounting groove (12), and the sealing lip (15) is fixedly connected to the edge of the sealing base (11).

6. The automotive sealing strip with a double-layer buffer structure according to claim 1, characterized in that, It also includes auxiliary sealing structures; The auxiliary sealing structure includes a waterproof membrane (31), a dustproof mesh (32), and an adsorption layer (33). The waterproof membrane (31) is fixedly connected to the inner side of the sealing substrate (11), the dustproof net (32) is set on one side of the waterproof membrane (31), and the adsorption layer (33) is fixedly connected to the other side of the dustproof net (32).

7. A car sealing strip with a double-layer buffer structure according to claim 6, characterized in that, The auxiliary sealing structure also includes a flow guide groove (34). The guide groove (34) is formed at the surface edge of the sealing substrate (11).

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